Title:
NEGATIVE PLATE AND MANUFACTURING METHOD THEREOF AND LITHIUM ION BATTERY AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/037266
Kind Code:
A1
Abstract:
A negative plate, a manufacturing method thereof and a lithium ion battery as well as a preparation method and an application thereof, wherein the negative plate comprises a negative current collector and a negative active material layer coated on the surface of the negative current collector, the negative active material layer comprises three layers from inside to outside, the particle diameters of the negative active material of the three negative active material layers are different and sequentially increase from inside to outside, the negative active material of a first negative active material layer is artificial graphite with D50 of 5-10μm, the negative active material of a second negative active material layer is artificial graphite with D50 of 8-12μm, and the negative active material of a third negative active material layer is artificial graphite with D50 of 10-15μm.
Inventors:
XIONG DEJUN (CN)
WEN SHILONG (CN)
LI CHONG (CN)
LIAO ZHANGJIN (CN)
WEN SHILONG (CN)
LI CHONG (CN)
LIAO ZHANGJIN (CN)
Application Number:
PCT/CN2020/112604
Publication Date:
March 04, 2021
Filing Date:
August 31, 2020
Export Citation:
Assignee:
FARASIS ENERGY GANZHOU CO LTD (CN)
International Classes:
H01M4/04; H01M4/133; H01M4/1393; H01M10/0525
Foreign References:
| CN110660965A | 2020-01-07 | |||
| CN103746089A | 2014-04-23 | |||
| CN109830690A | 2019-05-31 | |||
| CN109037587A | 2018-12-18 | |||
| JP2005071918A | 2005-03-17 |
Attorney, Agent or Firm:
BEIJING CAIHE LAW FIRM (CN)
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